12_Editor

import java.awt.*;
import javax.imageio.stream.ImageInputStream;
import javax.swing.*;
import java.io.*;
import java.awt.event.*;
import javax.swing.plaf.metal.*;
import javax.swing.text.*;

public class Editor extends JFrame implements ActionListener
{
    //Komponen untuk menulis text
    JTextArea Teks;

    //Frame pada aplikasi editor
    JFrame Kotak;

    //Constructor

    Editor()
    {
        //Membuat Frame
        Kotak = new JFrame("Text Editor");
         try{
             // untuk mengatur tampilan
             UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");

             // Mengatur Tema
             MetalLookAndFeel.setCurrentTheme(new OceanTheme());
         }
         catch (Exception e) {
         }

         //Component Text
        Teks = new JTextArea();

         //Membuat Menu Bar
        JMenuBar mb = new JMenuBar();

        //Membuat Menu File
        JMenu m1 = new JMenu("File");

        //Create Menu Item
        JMenuItem mi1 = new JMenuItem("New");
        JMenuItem mi2 = new JMenuItem("Open");
        JMenuItem mi3 = new JMenuItem("Save");
        JMenuItem mi4 = new JMenuItem("Print");

        mi1.addActionListener(this);
        mi2.addActionListener(this);
        mi3.addActionListener(this);
        mi4.addActionListener(this);

        m1.add(mi1);
        m1.add(mi2);
        m1.add(mi3);
        m1.add(mi4);

        //Membuat sebuah menu dalam Kotak Menu
        JMenu m2 = new JMenu("Edit");

        //Membuat Menu item di menu edit
        JMenuItem mi5 = new JMenuItem("Cut");
        JMenuItem mi6 = new JMenuItem("Copy");
        JMenuItem mi7 = new JMenuItem("Paste");

        m2.add(mi5);
        m2.add(mi6);
        m2.add(mi7);

        //Membuat menu item close
        JMenuItem mc = new JMenuItem("Close");

        mc.addActionListener(this);

        mb.add(m1);
        mb.add(m2);
        mb.add(mc);

        Kotak.setJMenuBar(mb);
        Kotak.add(Teks);
        Kotak.setSize(550,550);
        Kotak.show();

    }

    public void actionPerformed(ActionEvent e)
    {
         String s = e.getActionCommand();

        if(s.equals("cut"))
        {
            Teks.cut();
        }

        if(s.equals("copy"))
        {
            Teks.copy();
        }

        if(s.equals("paste"))
        {
            Teks.paste();
        }

        else if (s.equals("Save"))
        {
            // Membuat object ddari JfileChooser Class
            JFileChooser j = new JFileChooser("d:");
            int r = j.showSaveDialog(null);

            if (r == JFileChooser.APPROVE_OPTION) {
                // membuat set label ke tempat yang ingin di save
                File fi = new File(j.getSelectedFile().getAbsolutePath());

                try {
                    //membuat file writer
                    FileWriter wr = new FileWriter(fi, false);

                    //membuat buffered write

                    BufferedWriter w = new BufferedWriter(wr);

                    //write
                    w.write(Teks.getText());

                    w.flush();
                    w.close();
                }
                catch (Exception evt)
                {
                    JOptionPane.showMessageDialog(Kotak,evt.getMessage());
                }
            }
        }
        else if(s.equals("Open"))
             {
                 JFileChooser j = new JFileChooser();

                 int r = j.showOpenDialog(null);

                 if(r == JFileChooser.APPROVE_OPTION)
                 {
                     File fi = new File(j.getSelectedFile().getAbsolutePath());

                     try{
                         //String

                         String s1 = "" ,sl ="";

                         FileReader fr = new FileReader(fi);

                         BufferedReader br = new BufferedReader(fr);

                         sl = br.readLine();

                         while ((s1 = br.readLine()) != null)
                         {
                             sl = sl + "\n" + s1;
                         }

                         Teks.setText(sl);
                     }
                     catch (Exception evt)
                     {
                         JOptionPane.showMessageDialog(Kotak,"user telah membatalkan operasi");
                     }

                 }

                 else if (s.equals("New"))
                 {
                     Teks.setText("");
                 }
                 else if (s.equals("Close"))
                 {
                     Kotak.setVisible(false);
                 }
             }
            }
             // Class Utama

    public static void main(String args[])
    {
                    Editor e = new Editor();
    }
}